NAME

     pccard — PC Card bus driver

SYNOPSIS

     device pccard

DEPRECATION NOTICE

     This driver is scheduled for removal prior to the release of FreeBSD 13.0.

DESCRIPTION

     The pccard driver implements the PC Card bus.  The pccard driver supports all PC Card
     bridges in the system.

TUNABLES

     The driver supports the following tunable parameters, which may be added to
     /boot/loader.conf or set via the sysctl(8) command:
     hw.pccard.debug      Non-zero values cause more verbose information to be printed when a
                          16-bit PC Card is inserted or removed.
     hw.pccard.cis_debug  Non-zero value causes the CIS parsing of the 16-bit PC Card to be much
                          more verbose and include a complete CIS dump.

FILES

     /dev/pccard0.cis  This exclusive-use device will report all the CIS chains present in a PC
                       Card, if a 16-bit PC Card is inserted in the slot.  Only one user at a
                       time may access the CIS.  The CIS is presented as the relevant byte stream
                       from the PC Card.  For CIS tuples in Attribute Memory (the default), only
                       the even locations are presented (the ODD locations are undefined per the
                       standard).  For CIS tuples in Common Memory, every byte is presented to
                       the user.  Decoding of the CIS tuples is done via a userland program.  All
                       tuples are presented to the user.

SEE ALSO

     cardbus(4), pccbb(4)

     PC Card Standard, Release 8.